A kind of for hybrid transmission EOL test clamping tool

Abstract

The utility model relates to clamping tool technical field, especially a kind of for hybrid transmission EOL test clamping tool, it include: tool panel and two positioning pin components installed on tool panel;Multiple mounting blocks are also installed above the tool panel, and the inside of tool panel and mounting block is provided with clamping assembly;Among them, multiple clamping assemblies on the tool panel are used to form first clamping datum plane, the hybrid transmission EOL test clamping tool provided in the utility model, the clamping of hybrid transmission gearbox is realized by multiple clamping assemblies, and by detection component is in place detection, ensure the accuracy of workpiece positioning and the high reliability of test process, by the design of mounting block, the height of multiple cylinders can be different design, fundamentally solve the test deviation problem caused by the inconsistency of clamping force, while significantly reduce maintenance cost.The tool solves the problem that there is no special clamping tool for EOL test.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, and in particular to a clamping fixture for EOL testing of hybrid transmissions. Background Technology

[0002] With the rapid development of new energy vehicle technology, integrated hybrid transmissions have been widely used due to their high efficiency and energy saving advantages. Among them, the DHT150 integrated hybrid transmission assembly is a core power component, and its assembly quality and performance are directly related to the power and reliability of the whole vehicle. Therefore, after the assembly of this transmission assembly is completed, it must undergo strict off-line testing to fully verify its various performance indicators.

[0003] In the off-line testing process, a key step is to accurately pick up and transport the assembled hybrid transmission assembly from the production line pallet, and precisely align its input and output shafts with the corresponding interfaces on the EOL test bench to achieve a fast and reliable connection. However, the industry currently lacks dedicated automated clamping and positioning fixtures for specific hybrid transmission assemblies like the DHT150. Existing operations mostly rely on manual labor or simple hoisting equipment, which not only suffers from low alignment accuracy and low operating efficiency, but also easily causes bumps and damage to the transmission assembly due to unstable clamping or uneven force, affecting product quality.

[0004] Therefore, there is an urgent need to develop a clamping fixture that can clamp, position, and interface with the production line to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as low alignment accuracy and low operating efficiency, which rely heavily on manual labor or simple hoisting equipment. Therefore, this invention proposes a clamping fixture for EOL testing of hybrid transmissions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a clamping fixture for EOL testing of hybrid transmissions, including:

[0008] Tooling panel and two locating pin assemblies mounted on the tooling panel;

[0009] Multiple mounting blocks are also installed above the tooling panel, and clamping components are provided inside the tooling panel and the mounting blocks;

[0010] The tooling panel has multiple clamping components that form a first clamping reference surface, and the mounting blocks have multiple clamping components that form a second clamping reference surface. Detection components are installed above both the tooling panel and the mounting blocks, and the moving ends of the detection components and the clamping components are arranged opposite to each other.

[0011] Furthermore, the positioning pin assembly includes a pin seat and a pin rod, with the pin rod fixedly connected above the pin seat;

[0012] A blind hole is provided at the upper end of the tooling panel, the pin seat is inserted into the blind hole, and the pin protrudes above the tooling panel.

[0013] Furthermore, a connecting port is provided at the upper end of the tooling panel to connect to the blind hole. A fixing plate is fixedly connected to the connecting port by fasteners, and a stop notch adapted to the fixing plate is provided on the side of the pin seat.

[0014] Furthermore, the clamping assembly includes a cylinder;

[0015] Mounting holes are provided on the end faces of the tooling panel and the mounting block, and multiple cylinders are fixed in the mounting holes respectively. A gripper is fixedly installed on the shaft end of each cylinder.

[0016] Furthermore, the cylinder shaft end is formed with a cylindrical section and a conical section, and the conical section is connected to the lower part of the cylindrical section;

[0017] A conical sleeve is fitted on the outer side of the conical section, the outer side of the conical sleeve is open, the jaws are fitted on the outer side of the conical sleeve, and a nut is threaded onto the jaws on the outer side of the cylindrical section.

[0018] Furthermore, an anti-rotation pin extending to the inner side of the gripper is provided on the outer side of the gripper, and an anti-rotation groove is provided on the outer side of the tapered section, with the end of the anti-rotation pin placed in the anti-rotation groove.

[0019] Furthermore, the detection component includes a support;

[0020] A groove is provided on the end face of the bracket, and a sensor is tightened inside the groove by an adjusting nut. The detection end of the sensor and the gripper are arranged opposite to each other.

[0021] Furthermore, a lifting ring is fixedly installed above the tooling panel.

[0022] This invention proposes a clamping fixture for EOL testing of hybrid transmissions. The advantages are as follows: The clamping fixture provides clamping of the hybrid transmission using multiple clamping components, with positioning detection performed by a detection component, ensuring accurate workpiece positioning and high reliability of the testing process. The design of the mounting blocks allows for different heights of multiple cylinders, fundamentally solving the testing deviation problem caused by inconsistent clamping forces, while significantly reducing maintenance costs. This fixture solves the problem of lacking dedicated clamping fixtures for EOL testing, achieving rapid positioning and automated operation, effectively improving production efficiency. Attached Figure Description

[0023] Figure 1 The state of the tooling panel of this utility model when installing the gearbox. Figure 1 ;

[0024] Figure 2 The state of the tooling panel of this utility model when installing the gearbox. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the tooling panel structure of this utility model;

[0026] Figure 4 for Figure 3 A magnified structural diagram of area A;

[0027] Figure 5 This is a schematic diagram of the clamping component structure of this utility model.

[0028] In the diagram: 1. Tooling panel; 11. Connecting port; 12. Lifting ring; 2. Positioning pin assembly; 21. Pin seat; 22. Pin rod; 23. Fixing plate; 24. Stop notch; 3. Mounting block; 4. Clamping assembly; 41. Cylinder; 411. Cylindrical section; 412. Conical section; 413. Conical sleeve; 414. Nut; 415. Anti-rotation groove; 42. Gripper; 43. Anti-rotation pin; 5. Detection assembly; 51. Bracket; 52. Waist groove; 53. Sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-5 As an embodiment of the present invention, a clamping fixture for EOL testing of hybrid transmission is disclosed. Specifically, the clamping fixture includes a fixture panel 1 and two positioning pin assemblies 2 mounted on the fixture panel 1.

[0031] Multiple mounting blocks 3 are also installed above the tooling panel 1, and clamping components 4 are provided inside the tooling panel 1 and the mounting blocks 3.

[0032] In this embodiment, multiple clamping components 4 on the tooling panel 1 are used to form a first clamping reference surface, and multiple clamping components 4 on the mounting blocks 3 are used to form a second clamping reference surface. That is, in this embodiment, multiple clamping components 4 on the tooling panel 1 are used to clamp the bottom side of the gearbox, and multiple clamping components 4 on the mounting blocks 3 are used to clamp the high side of the gearbox, which can form a shape that fits the gearbox and form two clamping reference surfaces, thereby effectively improving the reliability and stability of clamping.

[0033] A detection component 5 is installed on the top of both the tooling panel 1 and the mounting block 3. The detection component 5 and the moving ends of the clamping components 4 are arranged opposite each other.

[0034] In some embodiments, the positioning pin assembly 2 of the present invention includes a pin seat 21 and a pin rod 22, with the pin rod 22 fixedly connected above the pin seat 21;

[0035] A blind hole is provided at the upper end of the tooling panel 1, the pin seat 21 is inserted into the blind hole, and the pin rod 22 protrudes above the tooling panel 1.

[0036] In this utility model, the design of two pins 22 is used to adapt to the pre-positioning holes at the bottom of the hybrid transmission. When the hybrid transmission assembly is transferred from the production line to the EOL testing process, the production line equipment lifts the assembly to the same height as this tooling before pushing it into the EOL testing process. At this time, the hybrid transmission assembly is positioned by the positioning pin assembly 2 and the plane of the tooling panel 1 to form a 2-pin 1-plane positioning.

[0037] Preferably, in order to facilitate the replacement and maintenance of the pin 22 during actual use, in this embodiment, a connecting port 11 is also provided at the upper end of the tooling panel 1 to connect to the blind hole. A fixing plate 23 is fixedly connected to the connecting port 11 by fasteners, and a stop notch 24 adapted to the fixing plate 23 is provided on the side of the pin seat 21.

[0038] Specifically, in this embodiment, the fastener is a bolt. The fixing plate 23 is installed inside the communication port 11 by the bolt, and the fixing plate 23 is limited on the stop notch 24. In this way, the installation and positioning of the entire pin seat 21 and pin rod 22 can be completed. Of course, when it is necessary to replace the pin seat 21 and pin rod 22, the bolt can be removed directly, and then the fixing plate 23 can be removed to complete the replacement operation of the pin seat 21.

[0039] Based on the above embodiments, the clamping assembly 4 in this embodiment includes a cylinder 41;

[0040] Mounting holes are provided on the end faces of the tooling panel 1 and the mounting block 3. Multiple cylinders are fixed in the mounting holes respectively. A clamping jaw 42 is fixedly installed on the shaft end of the cylinder 41. When the hybrid transmission assembly is positioned on the tooling panel 1, the cylinder 41 can retract its stroke to drive the clamping jaw 42 to clamp the hybrid transmission assembly. The detection component 5 senses the position of the clamping jaw 42 and determines whether the hybrid transmission assembly has been clamped.

[0041] Specifically, in this embodiment, the cylinder 41 has a cylindrical section 411 and a conical section 412 formed at its shaft end, and the conical section 412 is connected below the cylindrical section 411.

[0042] A tapered sleeve 413 is fitted on the outer side of the tapered section 412. The inner side of the tapered sleeve 413 has a tapered structure. The outer side of the tapered sleeve 413 is open, which is used to provide deformation space for the tapered sleeve 413. The jaw 42 is fitted on the outer side of the tapered sleeve 413. A nut 414 is threaded onto the jaw 42 and threaded onto the outer side of the cylindrical section 411.

[0043] In this embodiment, to facilitate the installation of the gripper 42, a tensioning method is used by employing a conical section 412 and a conical sleeve 413. During actual installation, the conical sleeve 413 is first placed on the outside of the conical section 412, and then the gripper 42 is placed on the outside of the conical sleeve 413. During installation, the nut 414 is locked on the outside of the cylindrical section 411. The downward movement of the nut 414 abuts against the gripper 42 and the conical sleeve 413. Since the conical sleeve 413 and the conical section 412 are tensioned, the gripper 42 can be tensioned and fixed.

[0044] Of course, in order to prevent the gripper 42 from rotating on the shaft end of the cylinder 41, in this embodiment, an anti-rotation pin 43 extending to the inner side is provided on the outer side of the gripper 42, and an anti-rotation groove 415 is provided on the outer side of the tapered section 412. The end of the anti-rotation pin 43 is placed in the anti-rotation groove 415. That is, in this embodiment, the circumferential position of the gripper 42 is locked by the cooperation of the anti-rotation pin 43 and the anti-rotation groove 415, which can prevent the gripper 42 from rotating on the shaft end of the cylinder 41, thereby improving the stability and reliability of clamping.

[0045] In some embodiments, the detection component 5 of the present invention includes a bracket 51, which is fixed above the tooling panel 1 and the mounting block 3.

[0046] A groove 52 is provided on the end face of the bracket 51. A sensor 53 is tightened inside the groove 52 by an adjusting nut. The detection end of the sensor 53 is arranged opposite to the gripper 42. Specifically, in this embodiment, the sensor 53 can be set as a proximity switch, which is used to determine the position of the gripper 42. For example, when the gripper 42 moves downward to clamp the side of the gearbox, the sensor 53 detects the gripper 42, which means that the clamping is completed. Otherwise, the clamping fails. Of course, in this embodiment, the position of the sensor 53 can also be adjusted up and down by adjusting the adjusting nut to adjust the detection position.

[0047] In addition, in this embodiment, a lifting ring 12 is fixedly installed above the tooling panel 1. The lifting ring 12 is used to lift the entire clamping tooling for maintenance and replacement. The lifting ring 12 is tightened to the panel by a bolt.

[0048] Furthermore, in this embodiment, there are five cylinders 41 and five grippers 42. Three cylinders 41 are directly installed into the holes of the tooling panel 1 and are tightened and fixed to the tooling panel 1 with multiple bolts. The other two cylinders 41 are not at the same height as the other cylinders 41, so they need to be installed into the holes of the auxiliary mounting block 3 and fixed with multiple bolts. Then the mounting block 3 and the cylinders 41 are installed together on the tooling panel 1 with bolts.

[0049] In summary, the hybrid transmission EOL testing clamping fixture provided in this utility model clamps the hybrid transmission using multiple clamping components 4, and the detection component 5 performs positioning detection, ensuring the accuracy of workpiece positioning and the high reliability of the testing process. Thanks to the design of the mounting block 3, multiple cylinders 41 can be designed with different heights, fundamentally solving the testing deviation problem caused by inconsistent clamping forces, while significantly reducing maintenance costs. This fixture solves the problem of lacking dedicated clamping fixtures for EOL testing, achieving rapid positioning and automated operation, effectively improving production efficiency.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping fixture for EOL testing of hybrid transmissions, characterized in that, include: Tooling panel (1) and two locating pin assemblies (2) mounted on tooling panel (1); A plurality of mounting blocks (3) are also installed above the tooling panel (1), and clamping components (4) are provided inside the tooling panel (1) and the mounting blocks (3); Among them, multiple clamping components (4) on the tooling panel (1) are used to form a first clamping reference surface, and multiple clamping components (4) on the mounting blocks (3) are used to form a second clamping reference surface. Detection components (5) are installed above the tooling panel (1) and the mounting blocks (3), and the moving ends of the detection components (5) and the clamping components (4) are arranged opposite to each other.

2. The clamping fixture for EOL testing of a hybrid transmission according to claim 1, characterized in that: The positioning pin assembly (2) includes a pin seat (21) and a pin rod (22), with the pin rod (22) fixedly connected above the pin seat (21); A blind hole is provided at the upper end of the tooling panel (1), the pin seat (21) is inserted into the blind hole, and the pin rod (22) protrudes above the tooling panel (1).

3. A clamping fixture for EOL testing of a hybrid transmission according to claim 2, characterized in that: A connecting port (11) is provided at the upper end of the tooling panel (1) to connect to the blind hole. A fixing plate (23) is fixedly connected to the connecting port (11) by fasteners. A stop notch (24) adapted to the fixing plate (23) is provided on the side of the pin seat (21).

4. A clamping fixture for EOL testing of a hybrid transmission according to claim 1, characterized in that: The clamping assembly (4) includes a cylinder (41); Mounting holes are provided on the end faces of the tooling panel (1) and the mounting block (3), and multiple cylinders are fixed in the mounting holes respectively. Among them, a clamp (42) is fixedly installed on the shaft end of the cylinder (41).

5. A clamping fixture for EOL testing of a hybrid transmission according to claim 4, characterized in that: The cylinder (41) has a cylindrical section (411) and a conical section (412) formed at its shaft end, and the conical section (412) is connected below the cylindrical section (411). A tapered sleeve (413) is fitted on the outside of the tapered section (412), the tapered sleeve (413) has an opening on the outside, the jaw (42) is fitted on the outside of the tapered sleeve (413), and a nut (414) is threaded onto the jaw (42) on the outside of the cylindrical section (411).

6. A clamping fixture for EOL testing of a hybrid transmission according to claim 5, characterized in that: An anti-rotation pin (43) extending to the inner side of the gripper (42) is provided on the outer side, and an anti-rotation groove (415) is provided on the outer side of the tapered section (412), with the end of the anti-rotation pin (43) placed in the anti-rotation groove (415).

7. A clamping fixture for EOL testing of a hybrid transmission according to claim 4, characterized in that: The detection component (5) includes a support (51); A waist groove (52) is provided on the end face of the bracket (51). A sensor (53) is tightened inside the waist groove (52) by an adjusting nut. The detection end of the sensor (53) and the gripper (42) are arranged opposite to each other.

8. A clamping fixture for EOL testing of a hybrid transmission according to claim 1, characterized in that: A lifting ring (12) is fixedly installed above the tooling panel (1).

Images